The best time to plant a tree was 20 years ago. The second best time is now.
(Physics is) a good framework for thinking....Boil things down to their fundamental truths and reason up from there.
优雅的沉默比空洞的言语更能打动人心。
相位裕度是系统在变得不稳定之前可以容忍的程度的度量。
我不需要地图,我自己开辟道路。